File talk:World map with four colours.svg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

This map uses 5 colors, including the sea. The theorem states it should be possible using only 4. I'm not saying it's easy, but anyone feel like trying to make a remake in which countries that border on the sea do not have the same color as the sea? — Preceding unsigned comment was added by 84.74.20.129 (talk) 14:43, 03 July 2016 (UTC)[reply]

Using olny 4 colours, including the sea, is impossible. Because France, Belgium, Kingdom of the Netherlands, Germany and the Ocean border each other. France and Kingdom of the Netherlands border each other on the island of Saint Martin/Sint Maarten. Stigni (talk) 07:36, 29 September 2017 (UTC)[reply]